NDLI: An Energy-Efficient and Distributed Cooperation Mechanism for k-Coverage Hole Detection and Healing in WSNs

Content Provider	IEEE Xplore Digital Library
Author	Chenxi Qiu Haiying Shen Kang Chen
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Clemson Univ., Clemson, SC, USA (Chenxi Qiu; Haiying Shen; Kang Chen)
Abstract	Present approaches to achieve k-coverage for Wireless Sensor Networks still rely on centralized techniques. In this paper, we devise a distributed method for this problem, namely Distributed VOronoi based Cooperation scheme (DVOC), where nodes cooperate in hole detection and recovery. In previous Voronoi based schemes, each node only monitors its own critical points. Such methods are inefficient for k-coverage because the critical points are far away from their generating nodes in k-order Voronoi diagram, causing high cost for transmission and computing. As a solution, DVOC enables nodes to monitor others' critical points around themselves by building local Voronoi diagrams (LVDs). Further, DVOC constrains the movement of every node to avoid generating new holes. If a node cannot reach its destination due to the constraint, its hole healing responsibility will fall to other cooperating nodes. The experimental results from the real world testbed demonstrate that DVOC outperforms the previous schemes.
Sponsorship	IEEE Comput. Soc.
Starting Page	73
Ending Page	81
File Size	317922
Page Count	9
File Format	PDF
e-ISBN	9781467391016
DOI	10.1109/MASS.2015.115
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Buildings Force Wireless Sensor Networks; k-coverage; Voronoi diagram; hole detection; hole healing Mobile communication Nickel Sensors Monitoring
Content Type	Text
Resource Type	Article

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